NettSite on "[Plugin: W3 Total Cache] Apache modules not detected in Compatibilty Check"

Hi,

When running the W3TC compatibility check, I see the following:

mod_deflate: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_env: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_expires: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_headers: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_mime: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_rewrite: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_setenvif: Not detected (required for disk enhanced Page Cache and Browser Cache)

However, all of these modules are active in my Apache installation.

Google Page Speed also recommends using browser caching, which is enabled in W3TC.

Are these issues related? Should I be concerned at all?

Regards,

William.

https://wordpress.org/plugins/w3-total-cache/